Improvement in bench-planes



UNITED STATES PATENT OFFICE@ RICHARD WASHBURN, OF RAMAPO, NEW YORK.

IMPROVEMENT IN BENCH-PLAN ES.

Specification forming part of Letters Patent No. 43,053, dated June 7, 1864.

To all whom it may concern:

Be it known that I, RICHARD WASHBURN, of Ramapc, in the county of Rockland and State of New York, have invented a new and useful Improvement in Bench-Planes; and I do hereby declare that the following is a full, clear, and eXactdescription of the same, reference being had to the accompanying drawings, forming apart of this specification, in which- Figure l is alongitudinal vertical section of -my invention. Fig. 2 is a plan or top view of the same. Fig. 3 is a detached perspective view of the slotted wedge which I use to secure the plane-iron.

Similar letters of reference indicate corresponding parts in the several figures.

This invention consists in the employment or use of a slotted wedge inserted in suitable guide-grooves in the front side of the throat of a plane, and adjustable by means of a setscrew, in combination with the plane-iron in such a manner, that by means of said slotted wedge and set-screw the plane iron can be iirmly secured in the desired position, and by the pointof the wedge the shavings arethrown ottl from the cutting-edge of the iron and caused to pass up through the throat ot' the plane with ease and facility, and the use of a double iron can be dispensed with.

A represents the body of my plane, which is made of wood or any other suitable material, and provided with a throat, B, through which the plane-iron O passes in the usual manner. The plane-iron is secured in the throat by means of a slotted wedge, D, a detached perspective view of which is shown in Fig. 3. rIhis wedge is guided in grooves a in the front side of the throat, audit is secured in its place by means of a set-screw, b, which passes freely through its top and screws into a nut fastened in the upper surface of the body A of the plane. The lower inclined surface, c, of the slotted wedge fits nicely on they upper surface of plane-iron, a-s clearly shown in Fig. 1, and its front edge is ehamfered ott' in the opposite direction to that ot' the planeiron, so that the shavings are thrown off from said cutting-edge, and that the inclined plate c of the slotted wedge takes the place of the ordinary double iron. By releasing the setscrew b the plane-iron can be easily adj usted up or down without the use of the hammer, and by tightening said set-screws the slotted wedge is firmly pressed down on the planeiron and the latter is securely held in the required position. T he sole ofthe plane is protected by a plate, E, secured to the front edge of the same by means of set-screw d. This screw passes through au oblong hole, e, in the body ofthe plane, so that the plate E can be easily adjusted backward or forward and that by these means the mouth ot' the plane can be enlarged or diminished at pleasure. lhe plate E therefore serves the double pur4 pose of protecting the sole ot the plane and of making its mouth adjustable.

The improvements herein described are ap` plicable to planes of every description, and it is obvious that the slotted Wedge can be used independent of the adjustable plate E, or in combination with the same, as may be desired.

NVhat I claim as new, and desire to secure by Letters Patent, is-

The slotted wed ge D, secured in the throat of a plane, A, by means of a set-screw, b, and operating in combination with the same and with the planeiron U, substantially in the manner and for the purpose speoied.

, RICH ARD WASH BURN. Witnesses DANIEL COOPER, JAMES SUEFERN. 

